There is also the scene where Tuco says "whoever double crosses me and leaves me alive knows nothing about Tuco" and then eats the cigar from Blondie. The picture then sort of flips in the movie prints to the next shot with Tuco having a noose around his neck.
This was included in the old vhs cassette from the 80s. Don't know if it was in any of the LDs? Anyway it should be in this IB Tech you've found and is a fun gimmick that adds to the scene.